package com.xujinchen.struct;

public class BrackDemo1 {
        public static void main(String[] args) {
            int i=0;
            while (i < 100) {
                i++;
                System.out.println(i);
                if (i==30){
                    break;
                }
            }
            System.out.println("123");
        }
    }

